Schur added that "there's no truth" to the rumors. "The Internet lit a match and set itself on fire," he said.

Lowe himself wasn't present at the panel because he was "looking at colleges with" his kids, Schur said.

He'll now be replacing Scott Caan on CBS' Hawaii Five-0, Schur joked during the panel session.

Cast member Aubrey Plaza deadpanned that the former Men star should "sift through" Twitter for her because she was ready for any "f---ed up shit you want to get into." (At the end of the session, Plaza suggested to the delight of the audience that Sheen play the mayor of Pawnee.)